Marice and the MF (Marice Friends) she created with her magic were used as an energy source in the past by General Star. In her sorrow, she lost control of her magic, so they had to seal her away for a thousand years. After her revival, she was able to enjoy the peaceful paradise she always dreamed of with Happy and the MF. But then General Star traveled through space-time to capture her! Will Happy be able to save Marice and the MF?! Will he ever be able to go back home to Natsu?! Happy's Heroic Adventure in another world is finally reaching its conclusion!